Coke-oven door and frame therefor



(No Model.)

J. HERRON 85 R. T. WRAY.

COKE OVEN DOOR AND FRAME THEREFOR.

910.287.285 Patented Oct. 28, 1883.

3 relation to ovens or furnaces for expelling gas FNITED STATES ermr;

COKE-OVEN DOOR AND FRAME THEREFOR SPECIFICATION forming part of LettersPatent No. 287,285, dated October 23, 1883. Application filed August 1,1883. (No model.)

To all whom it may concern:

Be it known that we, JOHN HERRON and ROBERT T. WRAY, of Dunbar, in thecounty of an air-inlet.

Fayette and State of Pennsylvania, have invented certain new and usefulImprovements in Doors and Frames for Coke-Ovens; and we do herebydeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification, and inwhich Figure 1 represents an old form of doorframe. Fig. 2 representsthe same frame with brick. Fig. 3 represents a frame with a removableiron plate. Fig. 4 represents a side view of matter shown in Figs. 2 and3. Fig. 5 represents edge and front view of iron plate. Fig. 6represents an improved door-frame with Fig. 7 represents front view ofair-inlet separate from frame. Fig. 8 represents an improved door-framewith brick. Fig. 9 represents an improved door-frame with a removableiron plate. ,Fig. 10 represents a side view of matter shown in Figs. 8and 9. Fig. 11 represents front view of iron plate.

Similar letters of reference indicate corre- V sponding parts in all thefigures.

Our improvement in doors and frames has from coal, leaving the coke orcarbonaceous portion, having for its object to so construct and arrangethe door that it can be easily managed, shall be absolutely fire-proof,and that it can be set aside entirely out of the Way of leveling thecharge of coal or drawing coke.

In the annexed drawings, the letter A represents the brick, which aremade of firecla The letter 13 represents an inlet, through which airpasses into oven at the top of iron plate and underneath arch'ofdoor-frame.

The letter 0 represents the iron plate, which, in combination with thefire-brick, makes the door.

The letter D represents the handle or handhold, which is fastened oniron plate with riv= ets, and when thus fastened helps to strengthen theplate.

The letter F represents a cross-bar, which is riveted on outside of ironplate for the purpose of strengthening it. 4

The letter F represents a chain, to which is attached an iron wedge,(represented by the let ter G,) and is to be placed at the end of thecross-bar E, for the purpose of holding plate in door-frame and againstthe brick, thus preventing all air from penetrating oven only at inlet,where it is needed.

The letter H represents top arch of air-inlet.

The letter I represents the opening through which air passes into oven.

The letter J represents the solid frame un derneath air-inlet.

The letter K represents the cast ribs underneath archof door-frame, asshown in Figs. 6, 8, and 9, and is for the purpose of holding iron platefirmly against the brick at top or upper part of door-frame.

The letter Z represents a slide-door for the purpose of regulating orshutting air out of oyen as it passes through air-inlet.

What we claim as our invention, and desire to secure by Letters Patent,is'

1. The combination of the door-frame, the inclosed fire-brick A, themovable iron plate 0, provided with handle D, crossbar E, and wedge G,connected to chain F, all substantially as described.

2. The door-frame provided with refractory brick filling and anair-inlet, I, above the arch or upper bar, substantially as set forth.

3. The door-frame adapted to receive refractory brick, and provided withribs K, in combination with holding-plate O, substantially as specified.V

In testimony that we claim the foregoing as our own we have hereuntoaffixed our signatures in presence of two witnesses.

JOHN HERRON. ROBT. r. WRAY.

Witnesses:

WV. N. RODKEY, SAMUEL TAKE.

